Hands down all Iken Atty's will blow any carto away, and I also agree about these dual coil cartos to a point, I have dissected one of them IssacClark, they are nothing more then one more wire coming up through the wrapping of the carto and the wire is a piss poor cheap piece of skimpy thin wire, nothing of a high quality wire being used, just like most of the wire coming from across the pond over in china, Issac is using all USA internals now made right here in the good old USA then has them shipped over to China to be used for his Atty's and this is only one of the reasons his Atty's are a big step up from others.!